Users Guide

Protocol Behavior when EIS is Enabled Behavior when EIS is Disabled
syslog EIS Behavior Default Behavior
tacacs EIS Behavior Default Behavior
telnet EIS Behavior Default Behavior
tftp EIS Behavior Default Behavior
icmp (ping and traceroute) EIS Behavior for ICMP Default Behavior
Behavior of Various Applications for Switch-Destined
Traffic
This section describes the different system behaviors that occur when traffic is terminated on the switch. Traffic has not
originated from the switch and is not transiting the switch. Switch-destined traffic is applicable only for applications which act
as server for the TCP session and also for ICMP-based applications like ping and traceroute. FTP, SSH, and Telnet are the
applications that can function as servers for the TCP session.
EIS Behavior: If source TCP or UDP port matches an EIS management or a non-EIS management application and source IP
address is management port IP address, management port is the preferred egress port selected based on route lookup in EIS
table. If the management port is down or the route lookup fails, packets are dropped.
If the source TCP/UDP port or source IP address does not match the management port IP address, a route lookup is done in
the default routing table.
EIS behavior for ICMP: ICMP packets do not have TCP/UDP ports. In this case, to perform an EIS route lookup for ICMP-based
applications (ping and traceroute), you must configure ICMP as a management application. If the management port is down or
the route lookup fails, packets are dropped.
If source IP address does not match the management port IP address route lookup is done in the default routing table.
Default Behavior: Route lookup is done in the default routing table and appropriate egress port is selected.
Table 21. Behavior of Various Applications for Switch-Destined Traffic
Protocol Behavior when EIS is Enabled Behavior when EIS is Disabled
ftp EIS Behavior Default Behavior
http EIS Behavior Default Behavior
ssh EIS Behavior Default Behavior
Snmp (snmp mib response) EIS Behavior Default Behavior
telnet EIS Behavior Default Behavior
icmp (ping and traceroute) EIS Behavior for ICMP Default Behavior
Internet Group Management Protocol (IGMP) 302